kvm extender

Recently I bought a Kinan extender for my job. I try my best to finish the installation but unfortunately I find it does not work! The extender is DP port, but one of my monitors is DP, and another is HDMI. So I bought an adapter to change into HDMI, but the HDMI monitor didn't show anything...

I recently bought a Powered USB 3.0 Hub off Amazon (link below) and have been trying to get different peripherals to work via a KVM (link below) that I have on my desk, and a KVM Extender (link below) that goes to the TV in my living room. For simplicity sake, all testing was done with either...